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ConnectionPool: Log possible HTTP1 blocks

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rinpatch 2020-09-11 14:22:54 +03:00
commit 89a7efab69
3 changed files with 38 additions and 14 deletions
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18
lib/pleroma/telemetry/logger.ex
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@ -7,7 +7,8 @@ defmodule Pleroma.Telemetry.Logger do
[:pleroma, :connection_pool, :reclaim, :start],
[:pleroma, :connection_pool, :reclaim, :stop],
[:pleroma, :connection_pool, :provision_failure],
[:pleroma, :connection_pool, :client_death]
[:pleroma, :connection_pool, :client, :dead],
[:pleroma, :connection_pool, :client, :add]
]
def attach do
:telemetry.attach_many("pleroma-logger", @events, &handle_event/4, [])
@ -62,7 +63,7 @@ defmodule Pleroma.Telemetry.Logger do
end
def handle_event(
[:pleroma, :connection_pool, :client_death],
[:pleroma, :connection_pool, :client, :dead],
%{client_pid: client_pid, reason: reason},
%{key: key},
_
@ -73,4 +74,17 @@ defmodule Pleroma.Telemetry.Logger do
}"
end)
end
def handle_event(
[:pleroma, :connection_pool, :client, :add],
%{clients: [_, _ | _] = clients},
%{key: key, protocol: :http},
_
) do
Logger.info(fn ->
"Pool worker for #{key}: #{length(clients)} clients are using an HTTP1 connection at the same time, head-of-line blocking might occur."
end)
end
def handle_event([:pleroma, :connection_pool, :client, :add], _, _, _), do: :ok
end